A place of punitive confinement; a lockup or cell; a military guardroom.

(transitive, Internet) To redirect (network traffic, etc.) nowhere; to discard (incoming traffic).

A smooth, barely visible, and dangerously slippery film of ice, usually over a dark surface, such as rock or pavement.

Magic derived from evil forces, as distinct from good or benign forces; or magic performed with the intention of doing harm.

(rare) Of or pertaining to employment in the black market; that is, to engagement in illicit trade or distribution of untaxed goods and services.

(colloquial, of a person) Having obvious bruises of the skin, typically from falling or being hit or punched.

Alternative spelling of blackcurrant

(geography) An inland sea bound by Southeastern Europe in the west, Eastern Europe in the north and northeast, and Turkey in the south.

(medicine) A chronic disease of the lungs caused by the long-term inhalation of coal dust.

(idiomatic) A nonconformist; an unusual or unconventional person, who may be rejected or disdained by others for this reason. / (idiomatic) A person who is not wholesome, honest, or trustworthy.